57 lines
1004 B
C++
57 lines
1004 B
C++
#include <bits/stdc++.h>
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using namespace std;
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const int N = 1e5 + 10;
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int n;
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struct Node {
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int sum = 0; // 被操作次数
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int color;
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int ls = -1, rs = -1; // 左儿子与右儿子
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} tr[N];
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void dfs(int u, int now) {
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now += tr[u].sum;
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if (u == -1)
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return;
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if (now & 1)
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tr[u].color ^= 1;
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dfs(tr[u].ls, now), dfs(tr[u].rs, now);
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}
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int main() {
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#ifndef ONLINE_JUDGE
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freopen("20240602.in", "r", stdin);
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#endif
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// 读入
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int n;
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cin >> n;
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for (int i = 1; i < n; i++) {
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int x;
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cin >> x;
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if (tr[x].ls == -1) // 赋值右儿子
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tr[x].ls = i + 1;
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else // 左儿子
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tr[x].rs = i + 1;
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}
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string s; // 注意：输入的是01串，不是0 1
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cin >> s;
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for (int i = 1; i <= n; i++)
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tr[i].color = s[i - 1] - '0';
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int q;
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cin >> q;
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while (q--) {
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int x;
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cin >> x;
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tr[x].sum++;
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}
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dfs(1, 0);
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for (int i = 1; i <= n; i++)
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printf("%d", tr[i].color);
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return 0;
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}
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